CVE-2026-44598

With valid login credentials, URL Redirection to Untrusted Site ('Open Redirect'), Server-Side Request Forgery (SSRF) vulnerability in Apache Shiro. This issue affects Apache Shiro from 2.0-alpha to 2.1.0, and 3.0.0-alpha-1, only when using shiro-jakarta-ee integration module. Users are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue by encrypting the cookie. After successful login, Jakarta EE integration module uses shiroSavedRequest cookie to redirect to a particular web page after login. This cookie was not validated, and can be forged to send a HTTP GET request from the server itself to an arbitrary URL from the cookie.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://shiro.apache.org/security-reports.html#cve_2026_44598	Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/05/25/8	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:apache:shiro::::::::
	cpe:2.3:a:apache:shiro:3.0.0:alpha1::::::

History

28 May 2026, 13:44

Type	Values Removed	Values Added
References	~~() https://shiro.apache.org/security-reports.html#cve_2026_44598 -~~	() https://shiro.apache.org/security-reports.html#cve_2026_44598 - Vendor Advisory
References	~~() http://www.openwall.com/lists/oss-security/2026/05/25/8 -~~	() http://www.openwall.com/lists/oss-security/2026/05/25/8 - Mailing List, Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.4
CPE		cpe:2.3:a:apache:shiro:::::::: cpe:2.3:a:apache:shiro:3.0.0:alpha1::::::
First Time		Apache Apache shiro

25 May 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-25 21:16

Updated : 2026-05-28 13:44

NVD link : CVE-2026-44598

Mitre link : CVE-2026-44598

CVE.ORG link : CVE-2026-44598

JSON object : View

Products Affected

apache

shiro

CWE

CWE-601

URL Redirection to Untrusted Site ('Open Redirect')

CWE-918

Server-Side Request Forgery (SSRF)

{"id": "CVE-2026-44598", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}], "cvssMetricV40": [{"type": "Secondary", "source": "security@apache.org", "cvssData": {"Safety": "NEGLIGIBLE", "version": "4.0", "Recovery": "AUTOMATIC", "baseScore": 5.1, "Automatable": "YES", "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "valueDensity": "DIFFUSE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:D/RE:L/U:Green", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "GREEN", "userInteraction": "PASSIVE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "LOW", "vulnConfidentialityImpact": "LOW", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "LOW", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "published": "2026-05-25T21:16:34.970", "references": [{"url": "https://shiro.apache.org/security-reports.html#cve_2026_44598", "tags": ["Vendor Advisory"], "source": "security@apache.org"}, {"url": "http://www.openwall.com/lists/oss-security/2026/05/25/8", "tags": ["Mailing List", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@apache.org", "description": [{"lang": "en", "value": "CWE-601"}, {"lang": "en", "value": "CWE-918"}]}], "descriptions": [{"lang": "en", "value": "With valid login credentials, URL Redirection to Untrusted Site ('Open Redirect'), Server-Side Request Forgery (SSRF) vulnerability in Apache Shiro.\n\n\n\n\nThis issue affects Apache Shiro from 2.0-alpha to 2.1.0, and 3.0.0-alpha-1,\u00a0only when using shiro-jakarta-ee integration module.\n\nUsers are recommended to upgrade to version 2.1.1, or 3.0.0-alpha-2 or later, which fixes the issue by encrypting the cookie.\n\nAfter successful login, Jakarta EE integration module uses shiroSavedRequest cookie to redirect to a particular web page after login.\nThis cookie was not validated, and can be forged to send a HTTP GET request from the server itself to an arbitrary URL from the cookie."}], "lastModified": "2026-05-28T13:44:45.473", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:apache:shiro:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "532EF640-8FA3-437C-9F02-6A17A5843675", "versionEndExcluding": "2.1.1", "versionStartIncluding": "2.0.0"}, {"criteria": "cpe:2.3:a:apache:shiro:3.0.0:alpha1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C79C762D-108B-4C23-BEAF-0115D43D83BD"}], "operator": "OR"}]}], "sourceIdentifier": "security@apache.org"}